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Automating Manufacturing Systems - Process Control and ...

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plc timers - 9.29<br />

8. Complete the timing diagrams for the two timers below.<br />

RTO<br />

A<br />

Timer t<br />

Preset 10s<br />

Accum. 1<br />

(EN)<br />

(DN)<br />

A<br />

t.EN<br />

t.TT<br />

t.DN<br />

t.ACC<br />

0 3 6 9 14 17 19 20<br />

A<br />

TOF<br />

Timer t<br />

Preset 0.5s<br />

Accum. 0<br />

(EN)<br />

(DN)<br />

A<br />

t.EN<br />

t.TT<br />

t.DN<br />

t.ACC<br />

0 15 45 150 200 225<br />

www.PA<strong>Control</strong>.com

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